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Discussion: Air purifier

in: AliC; AliC > 2020-09-15

Sep 17, 2020 12:51 PM # 
How does yours work? Is it electrostatic or simply a HEPA filter?
Sep 17, 2020 3:05 PM # 
Activated charcoal filter, then HEPA, then they do something to ionize air particles? Not sure on this last step, this is from company: Vital Ion System
As part of the four-stage filtration process, the bipolar ionizer generates an electrochemical reaction that reduces particles in the air.

It's a Coway air purifier...
Sep 17, 2020 11:11 PM # 
Not sure what they mean by electrochemical reaction. Probably electrostatic that imparts a charge to the small particles that roam around through Brownian motion, causing agglomeration and enough increase in mass to settle out. With electrostatic precipitation, the particles would be attracted to internal collector plates which would be cleaned off regularly.

In any case, I hope it's working for you.
Sep 18, 2020 6:00 PM # 
Seems to be! Now that we're at ~100 AQI, it's mostly detecting good air quality in the house and just running on the lowest setting. At above 500 it was pretty much always on high-mode. Think I'll change the filter soon, because it's probably done approaching a year's worth of filtering in just the past week...

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